Wireless Bike Computer, Bicycle Speedometer,Cycling Odometer,Multifunction with Extra Large LCD Backlight Display Waterproof Ys-606c (Black)

I have four of these now. I wanted to have the same one on each bike to make knowing the menus easier. The initial setup is a breeze. I use a tire cm chart from a google search for tire roll out size. I have noticed the following:- When at or below about 40 degrees out will not track data. Does not loose it, just stops tracking it.- Switching between menus have to be careful you do not press the set button or you have to click through the set up menu again. If you are careful you will not loose your data. - Getting the back light to work consistently is hard. But I don't need that feature.Good points: I have been on several rides with two of my bikes each with different tire sizes but t the same computer. The data tracked between the two just fine (matched distance , time, SW etc...) They are easy to read when you look down.I remove the fork sensor when washing as I like to use a good amount of water and soap. Easy to remount. Wheel magnets have stayed put.I realize a more expensive unit would solve my problem, however, for now these do the job.john

I really like this computer, its the first one I have bought in years and compared to my older ones it is far superior to any of my previous computers. The device arrived quickly and in very good shape, it was easily installed and the instructions were much better than the typical chinglish instructions that come with chinese products. Even without the instructions a child should be able to install this device without difficulty in less than 1/2 of an hour, the operation is simple and easy. The configuration can be changed without performing a total system reset which is a plus. It was easy to figure out how to operate and is rather intuitive once you understand its operation. The display is easy to see and displays useful information with great accuracy. Older wireless computers would not auto-start, you would have to push a button to wake it up once your began your ride, this device has a motion sensor built into the display unit and as soon as you move the bike the device wakes up, love this feature. We will see how long the battery lasts but the CR2032 battery is an easy to find item in any major retail store and is easy to install, you can re-enter the odometer reading once the battery is replaced so you will not lose your total mileage which is a plus. The wireless transmitter work great and the wheel mounted magnet is now a neodymium high strength magnet and the sensor can be much farther away from the magnet than on older units so sensor/transmitter placement is not as critical.. The back-light is bright and easy to use for night time riding. The touch buttons are not very tactile but activate with a light touch and are totally waterproof. The mounting bracket is sturdy and easy to mount, it is made of plastic and will not corrode, if broken it can be easily replaced since the mount is now becoming a standard configuration. The device has a couple of small flaws such as the nut used to mount the bracket should be a captive nut, it can slip out of its pocket and vanish, luckily I have plenty of metric hardware in my shop, also the rubber strips supplied to fill the gap between the mount and the handlebar are too thick, it really needs to come with a thinner strip for use with fat bars which are now very popular, the included strip can be cut to make it work. The fact it displays the temperature is a feature many more expensive computers don't have, be aware that sunlight can elevate the temperature of the device and it will give higher than ambient readings, that is just how things work in the real world and I can put up with it. Over all, for the money and features this device is a winner, it outperforms my friends high-dollar brand name eye-candy bike shop installed devices. If you want a good bike computer that has great features and installs easily this is the one. I did not receive this item for free or at a reduced price in order to provide a positive review, I did the due diligence and read reviews and considered features then made an informed decision, bought this item and am very happy with it.

The directions are beyond confusing. Partially I suspect due to English not being the primary language of the writer. The 23 inch maximum from Sensor to Module is no doubt the BEST you can expect and subject to conditions such as battery condition, dirt and position of mounting. In my case I could not mount the module where I really needed it and the position I finally settled for (21 inches apart) resulted in inconsistent performance with questionable numbers. This will probably work well with new batteries and a total distance of less than 20 inches.

I am a long distance cyclist, and I rely upon the data of a computer to pace my workout and track my progress. I was thrilled to find a tiny device that was inexpensive AND feature packed, with just the right data on the screen. All was going fantastically well until my second long ride.My first ride with this computer was flawless, the test around the neighborhood of 3 miles. I was seeing all the data I needed on the main screen, without need to switch over to the alt screen. I was impressed with my pace, and went on the next day to do a group ride and push myself to a personal best 50 miles.The following weekend, I had another group ride, and this one was a drive-to event. I was away from my garage and tools, so when the computer was not sensing the magnet, I figured the battery had died. I was getting absolutely NO data from the spoke magnet passing the sensor, even with gentle actual contact. I tried every possible position and distance between magnet and sensor, also adjusting the position of the magnet along the spoke for perfect centering. I've been using bike computers since 1990, and have owned more than a dozen over the years. I well know how to install them and adjust them for proper pickup. I gave up after 5 tries because I thought "the battery probably died in the sending unit".Nope. Back home, I took the batteries out of both the computer and the sender, swapped them, and was very surprised that the computer had power. So it was NOT a battery issue. Ok, next test... put it all back together...weird, it works. Well, perhaps an anomaly? I was willing to give it another try.Weekend 3, another group ride, and I tested the function before leaving my garage. It was fine. Then I unload the bike at the meetup, test it, and NOTHING. No data from the magnet again. I pull the battery out of the sending unit, re-insert it, and still nothing. WTF. I'm done with this POS. It ruined valuable data from 2 consecutive competitive rides. If I can not count on my bike computer to work flawlessly every time, I am changing it. Returned for refund.